Espresso C15---weak coffee

My C1500 has started to produce very, very weak coffee (aka, dishwater). I've run through the cleaning procedure (with the prescribed tablets), cleaned the disk above the tray, cleaned the bean container, etc.

Basing on personal experience (you can find more on Google probably), solutions are:

On percolated (filter) coffee machines:

Check water temp, if water temp is insufficient , most common is scale heating element , faulty element, faulty thermostat.Check
if water is dripping right at the center of the filter, if it is
dripping on one side because the orifice is clogged, that can result in
weak coffee.Coffee blend not well distributed on filter basket.

On Espresso machines:

Check water temp, same as filter coffee machines (thermostat element, scale on heating chamber).Ensure that coffee is filled correctly in the filter cup (fill at level), and well pressed.Ensure that the coffee mixture that you are using is not too coarse, buy the apposite one for espresso.Ensure
that you are not leaving the machine brewing for a time that is too
long, and Italian coffee cup is very small, approximately one regular
shot.

On the hob moka pots (espresso, Moka and Bialetti type):

This
are the trickiest ones, you need art and practice to get a good
espresso with a Moka, but when you learn, the result is better than
what you may get with an home electrical espresso maker.The frame
on the hob must be not too strong, and the mixture coarse but well
pressed, with water at level tag, or you will get a weak coffee.On Mokas a good strategy is keeping hob at minimum, and turning up the flame at top when coffee starts coming out.

French and turkish cafetieres:

Ensure that you put enough coffee, water hot enough, and that you left the infusion enough time to get a strong coffee.

Note: insufficient pressure and clogged lines on electric machines never give you a weak coffee, exactly the opposite.Not pressed mixture always gives weak coffee, but too much pressed mixture may give you coffee with bad taste.

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After making approximately 200 coffees, the internal brewing chamber and thebrewing unit must be cleaned (of coffee oils, etc.). The display will showCLEAN UNIT alternating with the regular message. This indicates that it is timeto run the tablet cleaning cycle

Check water temp, if water temp is insufficient , most common is scale heating element , faulty element, faulty thermostat.Check
if water is dripping right at the center of the filter, if it is
dripping on one side because the orifice is clogged, that can result in
weak coffee.Coffee blend not well distributed on filter basket.

On Espresso machines:

Check water temp, same as filter coffee machines (thermostat element, scale on heating chamber).Ensure that coffee is filled correctly in the filter cup (fill at level), and well pressed.Ensure that the coffee mixture that you are using is not too coarse, buy the apposite one for espresso.Ensure
that you are not leaving the machine brewing for a time that is too
long, and Italian coffee cup is very small, approximately one regular
shot.

On the hob moka pots (espresso, Moka and Bialetti type):

This
are the trickiest ones, you need art and practice to get a good
espresso with a Moka, but when you learn, the result is better than
what you may get with an home electrical espresso maker.The frame
on the hob must be not too strong, and the mixture coarse but well
pressed, with water at level tag, or you will get a weak coffee.On Mokas a good strategy is keeping hob at minimum, and turning up the flame at top when coffee starts coming out.

French and turkish cafetieres:

Ensure that you put enough coffee, water hot enough, and that you left the infusion enough time to get a strong coffee.

Note: insufficient pressure and clogged lines on electric machines never give you a weak coffee, exactly the opposite.Not pressed mixture always gives weak coffee, but too much pressed mixture may give you coffee with bad taste.

check your solenoid valve and security valve of boiler of the machine. make sure they are clean and work good, than you will have perfect espresso again. if pump runs without your comand check up the swich of brewing coffee.

You should probably run a cleaning cycle with a cleaning tablet (the one you drop into the ground coffee shoot, not a decalcifying tab).This will clean out all the insides where coffee particles and oil can accumulate.The machine will ask you to run a cleaning cycle after a certain number of cups brewed. But you can also manually start it.

(this is copied from the manual)

You can run a tablet cleaning cycle at anytime even ifthe machine does not prompt you,• READY. Push and hold the Rinse button until display showsRINSE. The Dial illuminates.• Turn the Dial until display shows CLEANING. Push the Dial.Display shows EMPTY DRAWER.(Follow the rest of instructions for regular cleaning cycle)

IT MIGHT NEED DESCALING RUN SOME WATER AND WHITE VINEGAR THEN RUN CLEAN WATER A COUPLE OF TIMES AND MAKE COFFEE SEE IF ANY BETTER PS WHITE & ONE SUGAR FOR ME THANKS HOPE THIS IS HELPFUL GLENN.............

Check water temp, if water temp is insufficient , most common is scale heating element , faulty element, faulty thermostat.Check
if water is dripping right at the center of the filter, if it is
dripping on one side because the orifice is clogged, that can result in
weak coffee.Coffee blend not well distributed on filter basket.

On Espresso machines:

Check water temp, same as filter coffee machines (thermostat element, scale on heating chamber).Ensure that coffee is filled correctly in the filter cup (fill at level), and well pressed.Ensure that the coffee mixture that you are using is not too coarse, buy the apposite one for espresso.Ensure
that you are not leaving the machine brewing for a time that is too
long, and Italian coffee cup is very small, approximately one regular
shot.

On the hob moka pots (espresso, Moka and Bialetti type):

This
are the trickiest ones, you need art and practice to get a good
espresso with a Moka, but when you learn, the result is better than
what you may get with an home electrical espresso maker.The frame
on the hob must be not too strong, and the mixture coarse but well
pressed, with water at level tag, or you will get a weak coffee.On Mokas a good strategy is keeping hob at minimum, and turning up the flame at top when coffee starts coming out.

Note: insufficient pressure and clogged lines on electric machines never give you a weak coffee, exactly the opposite.Not pressed mixture always gives weak coffee, but too much pressed mixture may give you coffee with bad taste.